package cn.tedu._05interceptor.base.interceptors;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

/**
 * HandlerInterceptor接口：拦截器的接口;
 */
public class MyInterceptor implements HandlerInterceptor {
    /**
     * 拦截请求:实现权限校验、日志记录、性能监控、网站限流
     * @param request current HTTP request
     * @param response current HTTP response
     * @param handler chosen handler to execute, for type and/or instance evaluation
     * @return true:放行!!! false:拦截!!!
     * @throws Exception
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("1.第一个拦截器的preHandle方法执行");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("2.第一个拦截器的postHandle方法执行");
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("3.第一个拦截器的afterCompletion方法执行");
    }
}










